Description

Parameters and Model Explanation of NACHI Variable Volume Vane Pump VDR-2B-1A3-13

Name: VDR-2B-1A3-13 NACHI Variable vane pump
Brand: NACHI
SKU: 19226

Model: VDR-2B-1A3-13

Model Explanation: Each code in the model has a specific meaning, which helps to clearly identify the pump’s configuration and performance characteristics:

– VDR: Series code, representing NACHI VDR 13 Design Series variable volume vane pump, featuring high efficiency and quiet operation.

– 2: Pump size code, indicating the standard size of the pump body, matching the displacement specification of 25 cm³/rev. – B: Mounting method code, stands for flange type mount, suitable for fixed installation in hydraulic systems.

– 1: Ring/head ring size code, representing the standard size of the pump’s ring component.

– A: Flow characteristics code, indicating constant discharge type, ensuring stable flow output during operation.

– 3: Pressure adjustment range code, corresponding to the pressure range of 3~6 MPa (435~870 psi).

– 13: Design number, specifying the VDR 13 design series, which is optimized for durability and low power loss.

Type: Variable Volume Single Vane Pump (VDR 13 Design Series)

Capacity (Displacement): 25 cm³/rev (1.53 in³/rev)

Pressure Adjustment Range: 3~6 MPa (30.6~61.2 kgf/cm²; 435~870 psi) [matches the “3” code in the model]

Allowable Peak Pressure: 14 MPa (143 kgf/cm²)

No-Load Discharge Rate: – At 1000 min⁻¹: 23 L/min (6.1 gpm) – At 1200 min⁻¹: 27.6 L/min (7.3 gpm) – At 1500 min⁻¹: 34.5 L/min (9.1 gpm) – At 1800 min⁻¹: 41.4 L/min (10.9 gpm) [consistent with VDR 13 series flow specifications]

Revolution Speed Range: 800~1800 min⁻¹ (minimum to maximum)

Mounting Method: Flange Type Mount (Code: B)

Shaft Seal: Type 1

Weight: 17.6 kg (38.8 lbs)

Key Features: High efficiency with minimal power loss, especially at full cutoff; quiet operation with low vibration even in the high-pressure range, thanks to optimized journal bearings and suction/discharge port configurations; compact and simple design for easy operation and wide application in hydraulic systems; prompt response ensuring instantaneous and stable high-precision operation; durable construction with specially selected materials, combining NACHI’s professional experience for long service life.

VDR series NACHI VANE PUMP

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VDR-2B-1A3-13 NACHI Variable vane pump

Parameters and Model Explanation of NACHI Variable Volume Vane Pump VDR-2B-1A3-13

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